Abstract The effect of dust charge variation on the dust-acoustic solitary structures is investigated in a warm magnetized two-ion-temperature dusty plasma consisting of a negatively and variably charged extremely massive dust fluid and ions of two different temperatures. It is shown that the dust charge variation as well as the presence of a second component of ions would modify the properties of the dust-acoustic solitary structures and may excite both dust-acoustic solitary holes (soliton waves with a density dip) and positive solitons (soliton waves with a density hump).
Received: 26 August 2002
Revised: 26 November 2002
Accepted manuscript online:
Fund: Project supported by the Foundation of Northwest Normal University, China (Grant No KJCXGC-215).
Cite this article:
Xue Ju-Kui (薛具奎), Lang He (郎和) Effect of dust charge variation on dust-acoustic solitary waves in a magnetized two-ion-temperature dusty plasma 2003 Chinese Physics 12 538
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